GB775082A - Improvements relating to electrical conductors insulated with polyesters - Google Patents
Improvements relating to electrical conductors insulated with polyestersInfo
- Publication number
- GB775082A GB775082A GB24036/55A GB2403655A GB775082A GB 775082 A GB775082 A GB 775082A GB 24036/55 A GB24036/55 A GB 24036/55A GB 2403655 A GB2403655 A GB 2403655A GB 775082 A GB775082 A GB 775082A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formaldehyde
- coating
- wire
- per cent
- equivalents per
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Organic Insulating Materials (AREA)
- Paints Or Removers (AREA)
Abstract
775,082. Insulation of dynamo electric machine windings. GENERAL ELECTRIC CO. Aug. 19, 1955 [Dec. 10, 1954], No. 24036/55. Class 35. The windings of a dynamo-electric machine are insulated by coating them with a polyester synthetic resin which is the reaction product of (a) 25-56 equivalents per cent of terephthalic and/or isophthalic acid (or ester-forming derivatives thereof); (b) 15-46 equivalents per cent of ethylene glycol; and (c) 13-44 equivalents per cent of a saturated aliphatic polyhydric alcohol containing at least three hydroxyl groups, e.g. glycerine, 1:1 : 1 - trimethylol ethane, 1 : 1 : 1 - trimethylol propane, pentaerythritol, sorbitol, mannitol, diglycerol or dipentaerythritol. The polyesters per se are claimed in Specification 775,081, [Group IV (a)]. The coating is applied by passing the wire through the resin dissolved in a solvent (e.g. cresols, xylenols, polyhydroxy benzenes, petroleum hydrocarbons, xylenes or a mixture of polyalkyl benzene (known under the R.T.M. " Solvesso " 100 or 150), then through a die and then through an oven when the resin is cured on the wire; this process being repeated a number of times if necessary. After the last pass, the wire is wound on a reel. The polyester resins may be mixed with minor amounts of other resins, e.g. melamine-formaldehyde, epoxide, phenol - formaldehyde, aniline - formaldehyde, urea - formaldehyde, silicone, cellulose acetate, polyamide, vinyl, ethylene, styrene or butadiene-styrene resins. Many examples are given which describe the coating of round or rectangular copper, aluminium or nickel-plated copper wires and which also give details of certain physical characteristics of the enamelled wires.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US775082XA | 1954-12-10 | 1954-12-10 | |
US213987XA | 1954-12-10 | 1954-12-10 | |
US1033291XA | 1954-12-10 | 1954-12-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB775082A true GB775082A (en) | 1957-05-22 |
Family
ID=66635953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB24036/55A Expired GB775082A (en) | 1954-12-10 | 1955-08-19 | Improvements relating to electrical conductors insulated with polyesters |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS326742B1 (en) |
AT (1) | AT213987B (en) |
DE (1) | DE1033291B (en) |
GB (1) | GB775082A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3190770A (en) * | 1961-04-24 | 1965-06-22 | Shawinigan Resins Corp | Metal conductor coated with polyester outer layer and polymide inner layer |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1179319B (en) * | 1958-11-10 | 1964-10-08 | Bayer Ag | Lacquer solutions, especially stoving or wire lacquers |
DE1082314B (en) * | 1959-01-19 | 1960-05-25 | Herberts & Co Gmbh Dr Kurt | Electrical conductors with polyester resin insulation and process for their manufacture |
DE1083370B (en) * | 1959-01-19 | 1960-06-15 | Kurt Herbert & Co Vorm Otto Lo | Electrical conductors with polyester resin insulation and process for their manufacture |
DE1285081B (en) * | 1959-02-02 | 1968-12-12 | Gen Electric | Process for the production of insulating coatings on electrical conductors |
US3161541A (en) * | 1959-04-27 | 1964-12-15 | Gen Electric | Synthetic resin and conductors insulated therewith |
DE1181844B (en) * | 1960-07-30 | 1964-11-19 | Bayer Ag | Lacquer solutions |
DE1164664B (en) * | 1961-06-12 | 1964-03-05 | Dr Kurt Herberts &. Co vorm Otto Louis Herberts Wuppertal Barmen | Process for the preparation of polyesters containing free hydroxyl groups |
DE1239045B (en) * | 1961-06-16 | 1967-04-20 | Schenectady Chemical | Baked enamel for wires and electrical conductors based on polytere- or isophthalic acid-ester-polyurethanes, customary solvents and, if necessary, auxiliaries |
BE624621A (en) * | 1961-11-10 | |||
DE1197186B (en) * | 1962-03-16 | 1965-07-22 | Cella Lackfabrik | Wire enamels intended for electrical insulation |
DE1494537B1 (en) * | 1962-06-06 | 1969-12-18 | Hermann Wiederhold Lackfarbenf | Varnishes containing dyes for electrical conductors based on terephthalic acid polyester |
DE1278048B (en) * | 1963-04-03 | 1968-09-19 | Basf Ag | Electrical insulating varnishes based on polyesters |
DE1645435C1 (en) * | 1965-05-20 | 1983-04-21 | Schenectady Chemicals, Inc., Schenectady, N.Y. | Process for the production of polyesterimides |
DE1494457A1 (en) * | 1965-06-01 | 1969-12-11 | Herberts & Co Gmbh Dr Kurt | Process for the production of insulating coatings on electrical conductors |
DE2843895C3 (en) * | 1978-10-07 | 1981-11-26 | Felten & Guilleaume Carlswerk AG, 5000 Köln | Process for the production of electrical conductor wires insulated with lacquer |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2686739A (en) * | 1951-05-31 | 1954-08-17 | Dow Corning | Insulated electrical conductor and method of producing same |
US2686740A (en) * | 1951-05-31 | 1954-08-17 | Dow Corning | Insulated electrical conductor and method of producing same |
-
1955
- 1955-08-19 GB GB24036/55A patent/GB775082A/en not_active Expired
- 1955-09-03 DE DEG17915A patent/DE1033291B/en active Pending
- 1955-10-03 AT AT552455A patent/AT213987B/en active
- 1955-10-05 JP JP2634855A patent/JPS326742B1/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3190770A (en) * | 1961-04-24 | 1965-06-22 | Shawinigan Resins Corp | Metal conductor coated with polyester outer layer and polymide inner layer |
Also Published As
Publication number | Publication date |
---|---|
JPS326742B1 (en) | 1957-08-26 |
AT213987B (en) | 1961-03-10 |
DE1033291B (en) | 1958-07-03 |
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